xref: /linux/arch/powerpc/math-emu/mtfsfi.c (revision 96916090f488986a4ebb8e9ffa6a3b50881d5ccd)
1 #include <linux/types.h>
2 #include <linux/errno.h>
3 #include <asm/uaccess.h>
4 
5 #include "soft-fp.h"
6 
7 int
8 mtfsfi(unsigned int crfD, unsigned int IMM)
9 {
10 	u32 mask = 0xf;
11 
12 	if (!crfD)
13 		mask = 9;
14 
15 	__FPU_FPSCR &= ~(mask << ((7 - crfD) << 2));
16 	__FPU_FPSCR |= (IMM & 0xf) << ((7 - crfD) << 2);
17 
18 #ifdef DEBUG
19 	printk("%s: %d %x: %08lx\n", __func__, crfD, IMM, __FPU_FPSCR);
20 #endif
21 
22 	return 0;
23 }
24